"Tempered ceramisteel with a fractal monomer edge. Sucker cuts through anything."
Nice Girl[src]

Ceramisteel knife

A Ceramisteel knife was given to Snake Plissken by a mysterious girl in Chicago. After Plissken used the knife to defeat the A.T.A.C.S. unit, he returned it to the girl.

The girl described the knife as being made of tempered "ceramisteel" with a fractal monomer edge, and claimed that it could cut through anything.